<http://schema.org/description>
"Many of the green design features that modern homebuilders use to improve new homes&amp;#039; efficiency have their roots in very old design and construction techniques. What are some of most historic green homes?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://home.howstuffworks.com/home-improvement/construction/green/10-historic-green-homes.htm>